CALGARY, Feb. 19 /PRNewswire-FirstCall/ -- Gran Tierra Energy Inc. (NYSE Amex: GTE, TSX: GTE), a company focused on oil exploration and production in South America, announced today that it will release its financial and operating results the morning of Friday, February 26, 2010 and host its annual and fourth quarter 2009 results conference call the same day at 10:00 a.m. Eastern Time (ET). President and CEO, Dana Coffield and CFO, Martin Eden will discuss Gran Tierra Energy's financial and operating results for the year and quarter and then take questions from securities analysts and institutional shareholders. To pre-register for this conference call, please visit: https://www.theconferencingservice.com/prereg/key.process?key=PHKD7VXTD Interested parties may access the conference call by dialing 1.888.679.8040 (domestic) or +1.617.213.4851 (international), pass code 53552954. The call will also be available via web cast at http://www.grantierra.com/, http://www.streetevents.com/, or http://www.fulldisclosure.com/. The web cast will be available on Gran Tierra Energy's website until the next earnings call. If you are unable to participate, an audio replay of the call will be available beginning two hours after the call until 11:59 p.m. on March 5th, 2010. To access the replay dial 1.888.286.8010 (domestic) or +1.617.801.6888 (international) pass code 77108879. Please connect at least 15 minutes prior to the conference call to ensure adequate time for any software to download that may be required to join the webcast. About Gran Tierra Energy Inc. Gran Tierra Energy Inc. is an international oil and gas exploration and production company, headquartered in Calgary, Canada, incorporated in the United States, trading on the NYSE Amex Exchange (GTE) and the Toronto Stock Exchange (GTE), and operating in South America. Gran Tierra Energy holds interests in producing and prospective properties in Argentina, Colombia and Peru, and has opened a business development office in Rio de Janeiro, Brazil. Gran Tierra Energy has a strategy that focuses on establishing a portfolio of producing properties, plus production enhancement and exploration opportunities to provide a base for future growth. Additional information concerning Gran Tierra Energy is available at http://www.grantierra.com/. Investor inquiries may be directed to or (866) 973-4873. Gran Tierra Energy's Securities and Exchange Commission filings are available on a web site maintained by the Securities and Exchange Commission at http://www.sec.gov/ and on SEDAR at http://www.sedar.com/. DATASOURCE: Gran Tierra Energy Inc. CONTACT: For media and investor inquiries please contact Jason Crumley, Director - Investor Relations, (403) 265-3221,

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